If they helped me before, I remind them. No matter what you do, we're talking about how to create a familial sense and to do so, personally I always pat shoulders, hold hands or just hug people. Yeah, that was a lot of wriggly anxiety I suffered through to learn my ways, but they do as much for me as they ever could for people in need.
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"Standing on a well-chilled cinder, we see the fading of the suns, and try to recall the vanished brilliance of the origin of the worlds."
-Georges Lemaitre
"I fly through hyperspace, in my green computer interface"
-Gem Tos